activity
19972021
most citedMethods and results of an automatic analysis of a complete sample of Swift-XRT observations of GRBs

1.8k citations · 23.1k across the 229 of their papers we have counts for

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Showing 2003Show all

9 papers · 1 filter

astro-ph2003

Gamma-Ray Bursts observed by XMM-Newton

P. T. O'Brien, J. N. Reeves, D. Watson +2

Analysis of observations with XMM-Newton have made a significant contribution to the study of Gamma-ray Burst (GRB) X-ray afterglows. The effective area, bandpass and resolution of…

astro-ph2003★ 40 cited

XMM-Newton observations of 3C 273

K. L. Page, M. J. L. Turner, C. Done +4

A series of nine XMM-Newton observations of the radio-loud quasar 3C 273 are presented, concentrating mainly on the soft excess. Although most of the individual observations do not…

astro-ph2003★ 127 cited

An X-ray Baldwin effect for the narrow Fe K-alpha lines observed in Active Galactic Nuclei

K. L. Page, P. T. O'Brien, J. N. Reeves +1

The majority of Active Galactic Nuclei (AGN) observed by XMM-Newton reveal narrow Fe K-alpha lines at ~ 6.4 keV, due to emission from cold (neutral) material. There is an X-ray Bal…

astro-ph2003★ 44 cited

Simultaneous observations of the quasar 3C 273 with INTEGRAL, XMM-Newton and RXTE

T. J. -L. Courvoisier, V. Beckmann, G. Bourban +15

INTEGRAL has observed the bright quasar 3C 273 on 3 epochs in January 2003 as one of the first observations of the open programme. The observation on January 5 was simultaneous wit…

astro-ph2003★ 23 cited

The X-ray, optical and radio evolution of the GRB030329 afterglow and the associated SN2003dh

R. Willingale, J. P. Osborne, P. T. O'Brien +3

Extensive X-ray, optical and radio observations of the bright afterglow of the Gamma Ray Burst GRB 030329 are used to construct the multi-frequency evolution of the event. The data…

astro-ph2003★ 161 cited

Evidence of a high velocity ionised outflow in a second narrow line quasar PG0844+349

K. A. Pounds, A. R. King, K. L. Page +1

Following the discovery of X-ray absorption in a high velocity outflow from the bright quasar PG1211+143 we have searched for similar features in XMM archival data of a second (hig…

astro-ph2003★ 14 cited

Detection of type-2 quasars in the radio galaxies B3 0731+438 and 3C 257

P. M. Derry, P. T. O'Brien, J. N. Reeves +3

We present XMM-Newton observations and spectral fitting of two highly redshift, [OIII]-luminous, narrow-line radio galaxies, B3 0731+438 and 3C 257. Their X-ray continua are well f…

astro-ph2003★ 15 cited

XMM-Newton observation of the Seyfert 1 ESO 198-G24

D. Porquet, J. S. Kaastra, K. L. Page +3

We present the results from an XMM-Newton observation (January 24, 2001) of the bright Seyfert 1 galaxy ESO 198-G24 (z=0.045). We found that this Seyfert has an intrinsic 2-10 keV…

astro-ph2003★ 17 cited

An XMM-Newton observation of the Narrow Line Seyfert 1 Galaxy, Markarian 896

K. L. Page, P. T. O'Brien, J. N. Reeves +1

XMM-Newton observations of the NLS1 Markarian 896 are presented. Over the 2-10 keV band, an iron emission line, close to 6.4 keV, is seen. The line is just resolved and has an equi…